106 ! Pet ae ea 
2422 Schismope rimuloides Cpr. 
283 Schizothaerus nuttallii Conr 
604 Scissilabra dalli 
2529 Scissurella (Schizotrochus) Kelseyi 
21:0749 Seila montereyensis Bartsch. 565. 2715. 
104 Semele decisa 
21:1477 Semele incongrua Cpr. 
410 Semele pulchra Sowerby. 
1178 Semele rubropicta Dall. 
290 Semele rupium Sby. 
1342 Serridens oblonga Cpr. 
21:0750 Genus Serripes Beck, 1841. 
1163 Serripes centifilosum Carpenter. 
128 Septifer bifurcatus 
21:0084 Septifer bifurcatus obsoletus Dall. San Diego, Cal. 
1073 Sigaretus concavus Lamarck. 
183 Sigaretus debilis Gld 
1941 Sigaretus Oldroydi Dall. 
278 Siliqua lucida Conr 
1066 Siliqua patula Dixon. 
21:0034 Sinum californicum Oldroyd. 
21:0604 Siphonaria brannani Stearns. 1067. 
3165 Siphonaria lecanium Philippi, 1846. 
21:1480 Solariella johnsoni Dall. 
21:1481 Solariella peramabilis Cpr. 
2674 Solemya Agassizii Dall. 
21:1482 Solemya occidentalis Desh. 
2672 Solemya panamensis Dall. 
100 Solen rosaceus 
3862 Solen sicarius Gould 
2742 Solariella unda 
2673 Solemya valvulus Cpr. 
2486 Sonorella Baileyi 
2487 Variety Orcutti Bartsch. 
21:1267 Genus Spiroglyphis Daudin. 
21:1268 Spiroglyphis lituela Morch. 
21:1479 Sphaenia fragilis Cpr. 
1183 Spheenia ovoidea Carpenter. 
21:0129 Sphenia trunculus Dall. San Diego, Cal. 
1639 Spisula (Hemimactra) catilliformis Conr. 1867. 
1179 Spisula falcata Gould. 
1640 Spisula (Hemimactra) Hemphilli Dall. 1894. 
1641 Spisula (Hemimactra) planulata Conr. 1837. 
21:0368 Strigilla carnaria, 
21:0574 Strombiformis californica. San Diego bay, Cal. Cata- 
lina Isl. 
21:0475 Tagelus californianus Conrad. 101. 
2914 Tagelus subteres Conrad. 
2401 Tegula brunnea Philippi. 
2400 Tegula funebrale A. Ad. 
2402 Tegula montereyi Kien. 
2467 'Tegula peramabilis Cpr. 
2403 Tegula pulligo Martyn. 
2699 Tegula regina (See No. 16056). 
213 Tellimya tumida Cpr 
296 Tellina Bodegensis Hds 
21:1483 Tellina (Ouardia) buttoni Dall, 1900, 3208. 
£205 Vellina (Angulus) carpenteri Dall, 1900. 
